This documentary explains from different perspectives the economic, industrial, and social development of Puerto Rico from 1940 -- with the Manos a la Obra program -- to the present. Through interviews with representatives of different sectors of society: labor, industrial, political, academic, and community life, we see a broad panorama of what the country's transformation has been and what the changes and alternatives are for its development towards the future. Filming in the Dominican Republic complements this production, which also records Puerto Rico's relationship with the rest of the Caribbean through twin manufacturing plants. This inter-university and interdisciplinary documentary is ideal material for understanding the current situation facing Puerto Rico. It is an excellent stimulus for the discussion of the topic from different disciplines: history, economics, humanities, political science, and communications.